The Columbia/Snake River System defines shortsea shipping, and promises much, much more. Lewiston, Idaho, is perhaps best known to tourists as the turnaround for a Columbia River cruise or the jumping-off point for a trip to Hell’s Canyon, North America’s deepest gorge. For anyone transporting cargo, however, it’s known as the port farthest inland of any on the West Coast – a whopping 465 miles inland from the mouth of the Columbia River. Located close to the border between Washington and Oregon…